Automatic oscillating windstacker hood



1931- w. H. WINTER AUTOMATIC OSCILLATING WNDSTACKER HOOD Filed Feb. 24,1950 Mzzww Patented Dec. 15, 1931 .WILLIAM H. win'rnnor BOYDEN, IOWA.AUTOMATIG OSCILLATING wmnsrncxnn noon Application filed'lebruary 24,1930. Serial N0.'430,648.

Theobject of my invention is to provide an automatic oscillatingwindstacker hood which is simple, durable and comparatively inexpensiveto manufacture.

.1More, particularly,it is the object of my invention. to provide anautomatic oscillating means for the hood of a windstacker'ofa threshingmachine so that a continuous oscillating. motion can be imparted to the.hood m for directing the. straw angularly toward and away from themachine.

A further object is to provide a hood oscillating mechanism consistingof a yoke-memher pivoted to the windstacker and coactable with a camorother means for imparting'oscillating motion to the hood of thewindstacker.

Still another object is to provide adjusting means'so that either thedegree of oscillating travel of the hood or the position of such travelmay be changed as desired.

Another object is to provide means for rendering the device inoperablewhen it is desired to stop the oscillation of the hood.

With these and other objects in view my invention consists in theconstruction, -arrangement' and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims, and illustrated in theaccompanying drawings, in which:

Figure 1 is a plan view of a windstacker showing my hood oscillatingmechanism applied thereto. s

Figure 2 is a side elevation of the same. Fi re 3 is a perspective viewof a yoke mem gr included in the mechanism of the device.

Figure 4 is a perspective view of a lever.

Figure 5 is a perspective view of a cam and Figure 6 is anenlarged-detailed sectional View on the line 6-6 of Figure 2 showing apivotal connection for portionso-t the device.

On the accompanying drawings I have used the reference numeral 10 toindicate generally the housing of a threshing machine. A windstackerblower housing is in dicated at 12, a windstacker at 14 and a hood -56at 16. The windstacker l4 usually consists ed on the .windstacker 14 toaof .a telescopic elbow-14a, a primary tube 14?) and a secondary tube 140telescopically mounted with respect tothe tube1 4bp The hood 16 usuallyconsistsof-a pluralityof sections 16a, 16b and16c'telescop-icallyarranged in the form of an-elbow. The sectionsj16a,l6bxand l6care pivoted at118 and-*aspring 20 is provided forconstraining them toward extended position. i A ringgear22 ofnthe wormtype is mountand coacts witha worm .24. The worm 24 is mountedon'a shaft26 which extends into gear'housing 28. A drive shaft-30 alsoextends'into' the gear housing "28and is operatively connected thereinwith the shaft 26 for imparting-a plurality of revolutions thereto,first in one direction and then in another for oscillating thewindstackerl i on avertical-axis.-' The drive shaft 30. is provided witha pulley 32 which is belted by a belt 34 to any 1 0- tating shaftof'thethreshing machine/10. 0n the drawingsait is illustrated as extendingpulley .36 on the windsta'cker blower shaft. Y The windstacker 14 ispivotcd at 38 and the outer end may be manually adjusted as to height.by means of a hand wheel 40 operating a..-worm1 geared drum 42 on whicha cable 44 is wound. In connection with a'compensating5bar48 mountedonithe section 14?) of the windstacker 14 a pivotally'mounted; adjustinghandle is provided. iThi'shandlemay be swung to various positionsandklocked relative to asector-52- 1 f A rope 54 extends from thelever50: around a pulle 56 on the outerendofi the compensating ar 48, over apulley 58 on thesection 1400f the. windstacker 14 and is ordinarilyconnected witha bracket 60 on the hood '16 of the windstacker. Theforegoing construction refers to the ordinary typeof-threshingmachineatpresent inextensive use. l-will now' describe myparticularinvention as 'applied to such'awindstacker. n l My inventionincludes a semiecircular yoke member 62 having inclined arms 64 adaptedto be pivota-l'ly; connected with thelower end of the elbow 14a of thewindstacker 14." In Figure 6 I haveillustrated a pivotal'connecibc tionin which a bolt 66 extends through the elbow 14a and a spacer 68 issecured thereon by a nut 70. Washers 7 2 are provided for reinforcementpurposes and a washer 74 serves as a flange.

One of the arms 64 of the yoke member 62 is pivoted on a reduced portionof the spacer 68. A sector member 7 6 is riveted as at 78 to the arm 64and is likewise pivoted on the reduced portion of the spacer 68. A lever80 is also pivoted on this reduced portion. The other arm 64 is pivotedon a similar spacer having a shorter reduced portion as there are nootherparts pivoted on such reduced portion (see Figure 1).

The lever 80 is provided with a lug 82 fittingover the edge of thesector 76 to resist a set screw 84 which may be tightened after thelever 80 has been adjusted as desired with respect to the sector 76. Therope 54 in my installation extends over a pulley. 86 on the bracket 60,over guide pulleys 88 and terminates in a hook 90 which is selectivelyco-.

actable with any one of a plurality of openings 92 formedin the lever80. An opening 94 in the yoke 62 is also provided for the hook 90, thepur ose of whichwill hereinafter be fully'descri ed.

' In connection'with the yoke member 62 I provide a cam 96 adapted to besecured to the shaft 26 and to coact with the yoke member 62 as theshaft 26 rotates whereby the yoke member 62 may be raised and lowered ateach revolution of the shaft 26 in either direction.

Practical operation 2, it will be obvious that a half revolution of theshaft 26 will rotate the cam 96 and allow the spring 20 to pull thesection 160 of the hood 16 to the dotted line position for blowing strawin the direction of the arrow 98. When the cam 96 again assumes theposition illustrated, the straw will be blown in the direction of thearrow 100. Thus as the shaft 26 continues to rotate, the hood 16 will beautomatically oscillated-once each revolution of the shaft. 1

When it is desired to decrease the degree of oscillation, the hook 90can be hooked in an opening 92 of the lever closer to the pivot bolt 66.When it is desired to alter the position of oscillating travel of thehood 16 without altering'the throw thereof, the set screw 84 maybeloosened, thelever 8O moved pivotally as desired and the screw 84 againtightened. The adjusting device 5052 is ordinarily provided for merelychanging the position of the hood 16 when my oscillating device is notused but it is desirable to retain it on the machine so that it canstill be used for adjusting the hood when it is not desired toautomatically oscillate the hood.

I have provided a meansfor stopping the oscillation of the hood 16 andat the same time maintaining the yoke member 62 in a position where thecam 96 does not coact therewith. This means consists of hooking the hookin the opening 94 whereupon the spring 20 will maintain the yoke member62 in its raised position whereby the cam 96 will not coact with it. Theadjusting device 50-52 may then be used for setting the hood 16 wheredesired H *The purpose'of the inclined arms 64 is so that when thewindstacker 14 is swung a half revolution from the "position shown onthe drawings for the-purpose of moving the threshing machine from onejob to another, the semi-circular member 62 will cease to coact with thecam96 as it will be on the opposite side of the vertical axis of thewind stacker. Then when the windstacker is again brought into stackingposition, the inclined arms will cause the yoke member 62 to be raisedonto the cam 96 for proper coaction therewith.

The yoke member 62 beingsemi-circular makes it possible'for propercoactionwith the cam 96 during the oscillating movement of thewindstacker-14 on its vertical axis. This movement of course is impartedto it automatically from the. shaft 26 as before described. It will befound that by the'u'se of my device, a better. straw stack can be formedas the straw is distributed .over a wider area and packs better withoutthe tendency to topple over as when the hood 16 is-set in one position.

Some changes such as the substitutionof other driving meansinstead ofthe cam 96 may be made in my device and other mechanically equivalentparts may be substituted instead of those shown on the drawings withoutdeparting from the real spirit and purpose of myinvention, and it is myintention to cover by my claims, any modified forms of structure ,or useof mechanical equivalents, which may be reasonably included within theirscope. I

I claim as my invention: 1 i

1. For use with an oscillatable 'windstacker having an oscillatable hoodand mechanism for oscillating saidwindstacker including a shaft, amechanism for automatically oscillating said hood comprising asemi-circular yoke pivoted 'to' said windstacker, a cam on said shaftfor coaction with said yoke and anoperative connection between-said yokeand said hood. j

.2. For use with an'oscillatable windstacker having an 'oscillatablehood and mechanism for oscillatingsaid windstacker including a shaft, amechanism for automatically oscillating said hood comprisingasemi-circular yoke pivoted to said wind-' stacker, a cam on'saidfshaft'for fcoaction with said yoke and an operative connectionbetween said yoke and said -hood,'said operative connection comprising alever pivoted to the yoke, means for looking it in any position to whichit may be pivoted and a connecting member between the lever and thehood. I

3. For use with an oscillatable windstacker having an oscillatable hoodand mechanism for oscillating said windstacker including a'shaft, amechanism for automatically oscillating said hood comprising asemi-circular oscillatable yoke pivoted to said windstacker, means onsaid shaft for coaction with said yoke whereby to oscillate the yoke asthe shaft rotates regardless of the position of the yoke relative tosaid means and an operative connection between said yoke and said hood.

Des Moines, Iowa, February 6, 1930.

' WILLIAM H. WINTER.

